On Mon, Nov 16, 2020 at 06:50:43AM +0100, Lukas Bulwahn wrote: > Commit 2ef1bf118c40 ("mm: memcg: deprecate the non-hierarchical mode") > removed the only use of memcg_has_children() in > mem_cgroup_hierarchy_write() as part of the feature deprecation. > > Hence, since then, make CC=clang W=1 warns: > > mm/memcontrol.c:3421:20: > warning: unused function 'memcg_has_children' [-Wunused-function] > > Simply remove this obsolete unused function. > > Signed-off-by: Lukas Bulwahn <lukas.bulwahn@xxxxxxxxx> > --- > applies cleanly on next-20201113, not on current master > > Roman, please ack. Acked-by: Roman Gushchin <guro@xxxxxx> Thanks!